dtrace.org
(https://dtrace.org) 📸 Data Snapshot: June 20, 2026Classify each sentence as substantive or hollow. Grounding markers — numbers, currencies, dates, technical units, named entities — outweigh marketing adjectives. When fluff sits right next to hard evidence, the fluff is forgiven.
Information density is exceptionally high for a technical resource. The site avoids power words like ‘revolutionary’ or ‘world-class,’ instead providing specific technical nouns such as ‘in-kernel data summarization’ and ‘dynamic patching of live instructions.’ It includes functional code snippets (dtrace -n ‘proc:::exec-success…’) and specific literary references with page counts (1100 pages, 440 pages), ensuring a very low fluff-to-substance ratio.
Information Density is read straight from the body copy: how much of the text carries grounded, checkable substance versus hollow filler. Below is the clean text the engine analyzed, then the industry’s known generic-claim patterns to weigh it against.
📝 The Narrative — clean text per page (the substance-vs-filler signal)
HOMEPAGE · THIN (https://dtrace.org) dtrace.org
[H2] About DTrace is a performance analysis and troubleshooting tool that is included by default with various operating systems, including Solaris, Mac OS X and FreeBSD. A Linux port is in development. [H2] Blogs Adam Leventhal Bryan Cantrill Robert Mustacchi Keith Wesolowski
SUB-PAGE (https://dtrace.org/about/) About DTrace – dtrace.org
[H2] About DTrace
DTrace is a performance analysis and troubleshooting tool that is included by default with various operating systems, including Solaris, Mac OS X and FreeBSD. A Linux port is in development.
DTrace instruments all software.
Not just user-level software, including applications, databases and webservers, but also the operating system kernel and device drivers. The name is short for Dynamic Tracing: an instrumentation technique pioneered by DTrace which dynamically patches live running instructions with instrumentation code. The DTrace facility also supports Static Tracing: where user-friendly trace points are added to code and compiled-in before deployment.
DTrace provides a language, ‘D’, for writing DTrace scripts and one-liners. The language is like C and awk, and provides powerful ways to filter and summarize data in-kernel before passing to user-land. This is an important feature that enables DTrace to be used in performance-sensitive production environments, as it can greatly reduce the overhead of gathering and presenting data.
[H4] Example
Tracing which processes are executed when you run “man ls”, along with nanosecond timestamps:
# dtrace -n 'proc:::exec-success { printf("%d %s", timestamp, curpsinfo->pr_psargs); }'
dtrace: description 'proc:::exec-success ' matched 1 probe
CPU ID FUNCTION:NAME
1 797 exec_common:exec-success 21935388676181394 man ls
0 797 exec_common:exec-success 21935388840101743 sh -c cd /usr/share/man; tbl /usr/share/man/man1/ls.1 |neqn /usr/share/lib/pub/
1 797 exec_common:exec-success 21935388858652639 col -x
0 797 exec_common:exec-success 21935388863714971 neqn /usr/share/lib/pub/eqnchar -
0 797 exec_common:exec-success 21935388867119787 tbl /usr/share/man/man1/ls.1
1 797 exec_common:exec-success 21935388881310626 nroff -u0 -Tlp -man -
0 797 exec_common:exec-success 21935388922364648 sh -c trap '' 1 15; /usr/bin/mv -f /tmp/mpDKaiGn /usr/share/man/cat1/ls.1 2> /d
1 797 exec_common:exec-success 21935388930987671 /usr/bin/mv -f /tmp/mpDKaiGn /usr/share/man/cat1/ls.1
1 797 exec_common:exec-success 21935388948485045 sh -c less -siM /tmp/mpDKaiGn
0 797 exec_common:exec-success 21935388971039204 less -siM /tmp/mpDKaiGn
^C
That’s a one-liner. Much more complex scripts can be written as desired.
Aside from using DTrace at the command line, you may use it indirectly via another interface that uses DTrace as the back-end for gathering data. Examples of these include Apple’s Instruments, Oracle’s Sun ZFS Storage Analytics, and Joyent’s Cloud Analytics.
[H4] Books
Dynamic Tracing Guide: the reference manual, freely available online.
DTrace: the DTrace book of scripts and strategy, 1100 pages (2011).
Solaris Performance and Tools: takes Solaris perf analysis further with DTrace, 440 pages (2006).
[H4] Awards
The Wall Street Journal awarded DTrace top prize in its 2006 Technology Innovation Awards competition:
A Wall Street Journal editor initially screened more than 600 applications. The judges then considered 121 of the entries, selecting 12 category winners and 37 runners-up. Among the category winners are the top three award winners. In selecting winners, judges considered whether the technology truly represents a breakthrough from conventional methods, rather than just an incremental improvement.
This was inclusive of all technology areas; third prize was for a “powdered, inhalable insulin designed to replace shots for the treatment of diabetes”.
[H4] tl;dr
DTrace is a magician that conjures up rainbows, ponies and unicorns — and does it all entirely safely and in production!
[H1] dtrace.org
dtrace.org hosts blogs from software developers related to DTrace. These include Bryan Cantrill and Adam Leventhal, who with Mike Shapiro invented and developed DTrace at Sun Microsystems; and Brendan Gregg, the co-author of the DTrace book and the DTraceToolkit.
Or as someone put it neatly: “It’s just a bunch of ex-Sun guys who share the domain.”
SUB-PAGE (https://dtrace.org/mailing-list/) Mailing List – dtrace.org
[H2] Mailing List message from Adam Leventhal: To the ever-expanding DTrace community, This mailing list, hosted at the now defunct opensolaris.org, has become a reflection of DTrace’s past and not its future. While Oracle Solaris is closed, and OpenSolaris is no more, DTrace development continues in illumos. The DTrace community — users and developers — will be hosted on dtrace.org. I encourage you all to join dtrace-discuss@lists.dtrace.org (form below). I will be unsubscribing from dtrace-discuss@opensolaris.org, but will happily continue to answer questions on dtrace-discuss@lists.dtrace.org. [H2] Subscribe Subscribe to the dtrace-discuss mailing list: To send a message to the list, email dtrace-discuss@lists.dtrace.org You can read the archives for dtrace-discuss on the web at https://www.listbox.com/member/archive/184261/=now You can also subscribe to an RSS feed for dtrace-discuss, just add https://www.listbox.com/member/archive/rss/184261/21475687-a7888459 to your feed reader! [H3] Subscription Housekeeping To prevent messages from dtrace-discuss getting blocked by your spam filters, please add dtrace-discuss@lists.dtrace.org to your Address Book. List management very kindly provided by Listbox.
🧭 Industry Context — common generic-claim patterns in Software, SaaS & Tech Products to weigh the text against
This page presents a snapshot of public data from dtrace.org, captured on June 20, 2026, to show how machine logic reads Information Density signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to dtrace.org: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://dtrace.org to view the most current version of its content and see directly what this company is about and what it offers.